Did you visually verify that the heater valve is open internally?
Is it a problem that the air coming out is not hot enough or the air is hot but there's not enough quantity?
I drove mine to work daily and in the winter time the heater put out plenty of hot air.

73shark said: Did you visually verify that the heater valve is open internally?
Is it a problem that the air coming out is not hot enough or the air is hot but there's not enough quantity?
I drove mine to work daily and in the winter time the heater put out plenty of hot air.

Yes, the heater valve that I put in is a ball type made for a heater hose.

I seem to get good air flow (it seems anyway), but it is not very hot.

Try checking the temperature of the hose going in and the hose going out and see if there's any big difference. You can get one of those inexpensive laser temperature guns at Harbor Freight if you don't have one.
I assume that the hoses are free and clear.

73shark said: Try checking the temperature of the hose going in and the hose going out and see if there's any big difference. You can get one of those inexpensive laser temperature guns at Harbor Freight if you don't have one.
I assume that the hoses are free and clear.

I bought a laser temp gun: The temperature difference between the inlet and outlet heater hoses is about 10 degrees with the heater fan on high.

Checking the temp at the heater air outlet at the passenger side is about 130 degrees (anyone know if this is about right?) The driver's side is about ten degrees cooler.

If the evaporator is still in the housing, then perhaps it's clogged w/ debris, mold, and/or mildew. You can open the housing up w/o removing the engine and check the evaporator. Not sure why they would've disabled the A/C.

just a thought, as i did not notice anyone mentioning this, and sorry if i missed it if they did mention the blend door. Its a door within the duct that diverts the air from either the a/c evaporator and/or the heater core.... so it doesn't blow hot air when the a/c is on, or cold air with the heater on.... if you took the map pouch panel off, you'd see the lever on top of the duct. I have had issue with the wire going to it come off, or not work at all when you roll the heater selector.... i'll link a video showing how to replace the heater core, and you can see the small lever with the wire(push/pull type wire) that opens/closes the blend door... it can be seen around the 3 minute mark... http://https://www.youtube.com/watch?v=83s8HnUPcIU

stingrayjim jr said:
just a thought, as i did not notice anyone mentioning this, and sorry if i missed it if they did mention the blend door. Its a door within the duct that diverts the air from either the a/c evaporator and/or the heater core.... so it doesn't blow hot air when the a/c is on, or cold air with the heater on.... if you took the map pouch panel off, you'd see the lever on top of the duct. I have had issue with the wire going to it come off, or not work at all when you roll the heater selector.... i'll link a video showing how to replace the heater core, and you can see the small lever with the wire(push/pull type wire) that opens/closes the blend door... it can be seen around the 3 minute mark... http://https://www.youtube.com/watch?v=83s8HnUPcIU

stingrayjim jr said:
just a thought, as i did not notice anyone mentioning this, and sorry if i missed it if they did mention the blend door. Its a door within the duct that diverts the air from either the a/c evaporator and/or the heater core.... so it doesn't blow hot air when the a/c is on, or cold air with the heater on.... if you took the map pouch panel off, you'd see the lever on top of the duct. I have had issue with the wire going to it come off, or not work at all when you roll the heater selector.... i'll link a video showing how to replace the heater core, and you can see the small lever with the wire(push/pull type wire) that opens/closes the blend door... it can be seen around the 3 minute mark... http://https://www.youtube.com/watch?v=83s8HnUPcIU

https://www.youtube.com/watch?v=83s8HnUPcIU

Okay, I pulled the right-side dash and found the lever. The cable is hooked to it, and it did move when I moved the heater controls, but after a bit it no longer moved. Don't know why.

I did notice that the vent to the left front on the heater box did not move at all. I assume this opens depending on the vent setting to direct heat to the front ducts (the duct work is missing on this car). I could open it manually, and felt air coming from the opening. I assume with this closed the air is going mostly to the defroster vent. Not sure if there is a vacuum issue or what. . .

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